I get real time video, server I7-2600 100mb/s backbone, client, old
MacPro-1 4CPU 4G of RAM running Ubuntu 15.04 with preemptive kernel on 15mb/s
Comcast cable modem, server running Fedora 22 with a pre-emptive kernel, don't
understand what "preemptive settings" mean, either kernel is built so that it
can be preempted or not. I can get 30 frame/second video not 1/2 frames per
second. And even with a non-preemptive kernel I only see occasional glitches
not 1 frame every ten second, so you've got something still really broken.
Did you try the ping I suggested?
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On Mon, 7 Sep 2015, Harald Heigl wrote:
Date: Mon, 7 Sep 2015 23:24:42 +0200
From: Harald Heigl <[email protected]>
To: [email protected]
Subject: Re: [X2Go-User] Questions regarding mate/video quailty
Hi,
I've got some more information: the kernel itself is not preemptiv,
but there are some preemptiv settings set. But I used an alternative
preemptive fedora kernel and found only small changes. What I found:
- In vlc I have to deactivate overlay-mode
- In Parole I have to set "No Xv" instead of "X11/XShm/Xv" in
settings, videooutput.
Parole works better than vlc and is at around 1-2 updates per second,
which is far better than every 10 second, but still not really
watchable.
Perhaps there is still some wrong setting on my computer (caching the
video-pictures?) or my server is at it's limit ...
Though there are still 3Gb (of 6Gb) free, CPU is working at 10-30%,
ping is nearly all the time lower than 0.5ms.
Thanks so far,
Are there any settings or players you prefer? Is a [email protected]
too slow as server, which impact is on the graphic card (though I have
no problems locally)
Harald
2015-09-07 16:59 GMT+02:00 Robert Dinse <[email protected]>:
Do a uname -a on the box and see if it has PREEMPT in the result
string.
If it does then it is and then I'd start looking at resource usage on the
box
or possibly network latency issues. Might do a ping from your client while
watching a video and see if you get any network latency spikes.
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On Mon, 7 Sep 2015, Harald Heigl wrote:
Date: Mon, 07 Sep 2015 13:39:01 +0000
From: Harald Heigl <[email protected]>
To: [email protected]
Subject: Re: [X2Go-User] Questions regarding mate/video quailty
Hi,
I don't think, that the client is the problem, cause I tested also a
second
x86-fedora22-client with exactly the same result, so I expect the server
is
the problem. I've asked at fedoraforum cause of preemptive kernel and they
say the standard is still preemptive.
With nomachine 4.0 video is much better (even if not 100%), but with
nomachine I can't use virtual desktop for free.
Any other suggestion? Server requirements, ... ?
Thanks,
Harald
Robert Dinse <[email protected]> schrieb am So., 6. Sep. 2015 22:06:
I'm not familiar with your client machine but on the server side,
build
a kernel with kernel pre-emption enabled, for myself at least it helped
considerably.
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Eskimo North Linux Friendly Internet Access, Shell Accounts, and
Hosting.
Knowledgeable human assistance, not telephone trees or script
readers.
See our web site: http://www.eskimo.com/ (206) 812-0051 or (800)
246-6874.
On Sun, 6 Sep 2015, Harald Heigl wrote:
Date: Sun, 6 Sep 2015 22:01:48 +0200
From: Harald Heigl <[email protected]>
To: [email protected]
Subject: Re: [X2Go-User] Questions regarding mate/video quailty
Hi,
I have still the problem, that running video over x2go (per vlc or
mates default paroleplayer) is really slow and laggy.
server: Fedora 22, core2duo, x86, 4.0.1.19
client: linaro, cubieboard, armhf, 4.0.5.0
- I have testet with another x86 computer as client with no change
- I have connected the server with the other x86 client directly to
find out if the network has a problem, with no change
- I have tried iperf, but the speed of my gigabit lan is fast
- I have changed the graphiccard of my server (if that changes anything)
I have to admit, that my server is an old core2duo/computer, with old
radeoncard, ssd and 6GB RAM, but I just want to connect a single user
from another room inside my home. (and at max one physical user)
Fedora 22 was set up on the server 2 months ago with a fresh install
and a lot of packages like libreoffice, 2 browsers, ... . x2goserver
was set up from the repos.
Running videos directly on the computer is no problem.
Are there any limitations or something I can check (logs, something I
can try out) or are there any minimum system requirements?
Thanks,
Harald
2015-08-24 22:30 GMT+02:00 Harald Heigl <[email protected]
:
Hi,
Thanks for pointing this out. I had x2goserver 4.0.1.19 on fedora and
4.0.1.xx on my client, which seemed to be an old version. I assumed
server and client-version belong together. I installed 4.0.5.0 (from
ubuntu armhf repos) on the client but had the same difficulties,
eventhough it was better and more fluent now.
I'll see if I can find another x86 computer and try it from there. I
think my client is the problem (or the armhf-packages not 100% the
right one for cubieboard).
I will need some days to identify the guilty part, I'll write her
again.
Thanks for all the information,
Harald
2015-08-24 19:16 GMT+02:00 Orion Poplawski <[email protected]>:
On 08/24/2015 06:37 AM, Harald Heigl wrote:
Hi,
Thanks for the information I just used the
fedora(server)/linaro(client) included repos and they have both some
4.0.1 ...
Fedora won't be a problem (I can see a x2go-repo in the wiki), I hope
I find some armel-builds for my cubieboard. any hints? (sometimes
rasbperry-builds work as well)
I'll test it at home a little bit later and tell you.
You seem to be mixing client and server versions here a bit. Fedora
has
x2goserver 4.0.1.19 (latest) and x2goclient 4.0.5.0 (latest). The
version
numbers are not linked.
--
Orion Poplawski
Technical Manager 303-415-9701 x222
NWRA, Boulder/CoRA Office FAX: 303-415-9702
3380 Mitchell Lane [email protected]
Boulder, CO 80301 http://www.nwra.com
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